Loading and unloading machine



J. SIMONS.

LOADING AND UNLOADING MACHINE. APPLICATION FILED APR. 29, 1920.

1 ,426, l l 6. I Patented Aug. 15, 1922 2 SHEETS-SHEET l.

[Hill lllllll llll Hllllllllllllll'llllllllllllHIIIIII EILUIHH! llfillllllllllflllllllll IIIHIIIIIIHIIIIIIIIII JLIIIIHTFF'W1[\\ INVE/vro- Joseph, $0770.78 Afi-f'ys APPLICATION FILED APR. 29, I920- Patented Aug. 15, 1922.

2 SHEETS-SHEET 2.

Z- INVETNTOR UNITE s r-r JOSEPH SIMOITS, OF LOS ANGELES, CALIFORNIA.

LOADING AND UNLOADING MACHINE.

loading Machines, of which the following is a specification.

This invention is a loading and unloading machine comprising a mechanism arranged to be attached to a vehicle and adapted to be moved to a position beneath a load and to be elevated relative to the vehicle, so that the loadmay be transported by said vehicle or may be removed from theloading mechanism at an elevated point when it is simply desiredto employ the mechanism as elevating means.

plicable for a great variety of uses and upon a great variety of vehicles and it is to be understood that thevinvention contemplatesthe use of a mechanism such as will be hereinafter set forth upon any portion of any type-0f vehicle and for. accomplishing any.

- purpose involving the raising of a load.

Thus, for example, the improved machine maybe mounted at either'end or upon the side of a usual motor truck, or it may be similarly positioned upon any other vehicle, such asa wagon, freight car or truck or in fact:

upon any load carrier. In like manner it will be understood that the machine is applicable to a variety of uses,' such as raising a load and transporting the same upon the vehicle to which the machine is .attached, and then unloading the load by lowering the machine. The machine may also be employed for digging by forcing the loading mechanism into the material to be dug and thenelevating the mechanism and dumping the load at any desired point. The machine will also be found ,to provide convenient means for simply elevating a load and unloading the load at any esired height without making use of the transporting possibilities aflorded by mount:-

- ing the machine upona vehicle.

Theinvention will be readily understood from the following descriptionof the accompanying drawings, in Wh1Ch- Figure 1 is a side elevation of one embodi-.

I ment of the invention showing the machine .-in position beneath a load ready to elevat .the same.

Fig. 2 1S. 9. top plan view of the machine.

Specification of Letters Patent. Patented Aug. 15, 1922- i Application filed April 29, 1920. S 'eriaI-No. 377,517.

Fig. 3 is a side elevation thereof partly broken away.

I F g. 4 is an end view of the same. Fig. 5 is a detailsection on the line 55 of Fig. 3.

. Fig. 6 is a detail modified form of the machine. I

Fig. 7 1s a detail end view of this form of the invention.

Fig. 8' is a'transverse section on the line 8-8 of Fig. 6. For the purpose of illustration and not as a limitation of the invention I have shown the machine ositioned at the rear end of a motor truck having wheels B and including the usual side bars 1 of the frame of the truck. The loading and unloading machine longitudinal section of a v I comprises members arranged to be moved A mechanism constructed in accordance. with the invention will be found to be ap-.

members and the load resting thereon relative to the truck..

As an instance of this arrangement, a

frame (1 is mounted upon the rear end of the truck frame andextends upwardly therefrom a substantial height. This frame is shown as comprising corner uprights {2 supported upon thelside framesof the truck and, pref-, .erably, connected at their upper and lower.

ends by cross frames 3. Diagonal braces 4 may also be attached to the frame as thus formed and the entire frame is suitably secured .to the side frames 1 of the truck as bybolts 5. v J I Vertical guide-ways D are provided at the rear ofthe frame C, these guide-ways, preferably, extending-downwardlyto points adjacent the ground level. These guide-ways are preferably arranged adjacent the respective sides of the truck frame and may com- I prise upright beams suitably secured to the frame C and having side plates 7 projecting therefrom to form vertically extending recesses, in which the elevating mechanism 0 the machine is arranged to slide.

The elevating mechanism, preferably,com-

prises a member slidable in each of the guide-ways, said members including laterally projecting arms E at their lower ends which" extend. beyond the mechanism, as thus far described, in parallel relation so as to. be positioned beneath a load for supporting the same when the slidable members are moved P and down W thin their respective guideways.

These slidable members are each, preferably, formed of two channel irons 8 arranged back to back and suitably secured to gether,the arms E of the'slidable members fixed upon a shaft 12 extendin being, preferably, formed by bendingthe channel irons forming the slidable members at approximately right angles to the upright portions of said slidable members. Thechan The shaft 12 may be journaled in bearings diagonal braces 17.

. Any suitable means may rotating shaft 12 in reverse directions for raising and lowering'the loading mechanism relatiye to the frame C. In the present eml l'upo'n extensions 15 of the upper cross bars of the frame C, these extensions being, preferably, braced by a cross bar 16 and by be. provided for bodiment of the invention manually actuated mechanism is shown for thus rotating shaft 12, although it'will be obvious that suitable power mechanism mayrbe employed for this purpose, as" for example by mounting an engine upon the truck frame or by load -by means of the loading mechanism is connecting the actuating mechanism with -,the motor of the truck. The mechanism illustrated comprises a shaft 20 extending at right angles .toshaft 12 and -journ'aledin bearlngs 21 upon cross bars of the frame (1' This shaft is provided with a worm 22 meshing with a worm wheel 23 uponshaft, 12 so that-ireverse rotation of shaft 20 will reversely rotate shaft 12' and thus raise or lower the elevating-mechanism." The shaft;

20 is shown as rotated bymeans of a handle wheel 25;

In Figure 1 the method of elevating the illustrated. Thus for example if a quantity of brick are to be moved from one position I to another they may be" stacked as shown and .the loading1 t,

at upon a palette G which is elevated from the ground upon suitable frames H.

The truck carrying the loading and unloadingmachin e is thenlbacked up to the brick mechanism being in a low ered position e. arms E are run in under. the palette G. By '"nowturning the handle wheel 25 the loading mechanism with the brick supported thereon may be elevated and the truck moved to'any place where it is desired to unload the brick. By then lowamie members may comprise the folv ering the elevating mechanism the palette G may be lowered to suitable supports and the arms E removed from beneath the load bymoving the truck forward.

c -Tn order to properly l ad the arms E-it may be necessary to slope the latter 'downwardly slightly towards their outer ends as clearly shown in Figure 1, and'this downward slope is liable to be increased when the load is upon the arms since the weight of th e*- load will cause depression of therear end of the truck upon its frame.

Under these conditions there is a possibility of the load sliding from the supporting arms after it has" been elevated, and means are therefore,

1 preferably, provided; in conjunction with a the elevating mechanlsm for titling the latter as it is raised to swing the ends ofthe arms upwardly and therebyv prevent sliding of the load from the arms. l I

As an instance of this arrangement, a

' roller 27 may be journaled in a bracket 28 so as to project beyond the uprights and laterally extending arms of each side of the elevating mechanism. This roller-is adapted to engage the base ofthe guideway HD asthe elevating mechanism is raised so as to swing the lower end of the elevating-mechanism away from the guide-way and thereby tilt I may begradually accomplished the lower end of I I the outer end of the arm E upwardl In order that this tilting of the arm guide-way is preferably bent away from the elevating mechanism as shown at A 30. 'By thisarrangement the elevating mechanism in its lowered position is'adapted to abut against the base ofthe guide-way D with the roller 27 resting against the. por tion of the guide-way bent away from the elevating mechanism. 7 When now the ele-.

vating mechanism is raised, the. roller pass-- ing over the surface 30 will gradually swing the elevating mechanism awayv from the guide-way until the roller engages themain portion of the base of the guide-way and tinues the roller passing over this main por end ofthe elevated mechanism in outwardly tilted position for tilting the farm E as previously described. This outward tilting 5 then as the raising of the mechanism contion of the-guide-way will hold the lower I of the 'lowerend of the elevated mechanism I willcause a corresponding inward tilting of the upper end of the elevated mechanism; 1 2 0 gradually slopes away as shown at to The upper end of the base of; guide-way D permit'of thistilting movement."

1 The'de ee to whlch the elevating mechanism will '1 tilted is, preferably, adjustable bymeans of mechanism arranged to change the relative position of the roller27 with regard to the elevating mechanism. This adjustingmeans may comprise brackets 32 j looselyreceived over the respective ends of bracket 28; for retalning thelatter in po i tion upon the elevating mechanism, but at the same time permitting of longitudinal adjustment of the bracket 28 relative to either the upright of the elevating mechanism orthe laterally extending arm thereof, and to a sufficient degree for accomplishing the required adjustment of roller 27. For this purpose a wedge 33 is arranged to be driven betweeneach end of bracket "28 and the bracket 32 as clearly shown in Figure 5, it being understood that sufficient lost motion is provided between the bracket 28 and bracket 32to permit of. the necessary adjustment of bracket 28. The Wedges are provided in various sizes, so that the bracket 28 may be variably positioned relative to the elevating mechanism by employin wedges of various widths. Bolts 34, pre erably, extend through brackets 32 and the ends of bracket 28 into. the channel bar's forming the elevating mechanism for guiding the adjustment of the bracket 28, these bolts, preferably, being received inelongated slots 35 provided in the ends of bracket 28. i

In the modification of the invention illustrated in Figures 6, 7 and 8, the elevating mechanism is employed as a device for digging and loading earth. In this embodiment of the invention the uprights comprising the slidable members at the opposite sides of the elevating mechanism are, preferably, connected by a frame-37 forming the rear of a digging bucket and the arms E of the elevated mechanism are similarly connectedv by a base 38 forming the ,base of thisbucket. In this arrangement the arms E are, preferably, hinged to the uprights of the elevating mechanism so that they may be lowered relative to the uprights for dumping the load contained within the bucket formed upon the'elevating mechanism. As an instance of this arrangement, the .arms E are made separate from the slidable uprights of the elevating mechanism and the ends thereof opposite the diggingends 9 areprovided with side plates 40 extending up and outside the opposite sides of the respective uprights of the elevating mechanism with pivot pins 41 extending through these side plates and the uprights of the elevating mechanism. The arms E thus arranged to swing relative to the slidable uprights are, preferably, normally locked in position at substantially right angles to the uprights, said locking means having manually controlled means for releasing the lock topermit of dumping -movement' of the arms. For this purpose a rod 42 may extend across the frame of the elevating mechanism, said rod being journaled in bearings 43 upon the res'pective'uprights of the elevating mechanism and-having an operating handle 44. for rocking the rod. The endsof the rod are-connected by links 47 with'fingers 45 slidable in guideways 48 and arranged w normally extenddown in front of the side plates .40, for looking thearms E-against pivotal movement.

When, however, it is desired to dump the load the rod 42 may be rocked so as to slide fingers 45 from in front of the side plates 40 and thereby permit dumping movement of the arms E. I

IVhen the elevating mechanism is employed as a digger as above described and the arms E are arranged for dumping move ment relative to the slidable uprights, instead of abucket being formed on the arms E as above described, a series ofteeth may be arranged-between the arms E in parallel relation thereto, so as to form a fork. A construction as thus described may be employed as a hay lifter or for digging into and elevating any other material which may be supported upon a fork arrangement as thus set forth.

Various changes may be made without departing from the spirit of the invention as claimed.

- What is claimed is:

1. The combination with a vehicle, of an upright frame, an elevating means slidable along said frame and having a projecting portion arranged to engage beneath a load, said 'frame and elevating means having cooperating surfaces arranged to tilt said elevating means when at-the bottom of said frame so as to lower the outerend of said load engaging portion of the elevating means. 2. A device of the character described including a frame, elevating mechanism slidable along the same, a contact member extending beyond said elevating mechanism" at its lower end, and av contact surface upon said frame at its lowerend and inclined relative to the same for engagement by said contact member to-tiltthe elevating mechanism' when 'the'latter is lifted, said frame having a, space at the upper end forming clearance for the upper end' of said elevating mechanism when thus tilted.

I 3. A device of the character described including a frame, elevating mechanism sliding means at its lower end and arranged to I engage said frame for tilting said'projecting portion of the elevating means, and means for adjusting said engagement to regulate the tilt of said elevating means.

beneath the load, means for tilting said elevating means relative to said frame, said -.load engaging portion of the "elevating 4. A device of the character described in- I able relative to said frame and having'a pro- 7 means being arranged for downward swing relative to said elevating means, and means frame andhaving a projecting portion arranged to engage beneath the load, and coacting means on the frame and elevating means arranged to tilt the elevatingfmeans when at the bottom of said frame so as tolower the outer end of the projecting portioa,

6. A .device of the. character describedcomprising'a frame, elevating means movable along the frame and having a projecting portion arranged to engage beneath thev load, and co-acting means on the frame and elevating means arranged to tilt the elevating means when at the bottom of said-frame so as to lower the outer end of the project ing portion:

In testimony whereof I have signed my name to this specification,

, Josnrri SIMONS. 

